idUS. Depósito de Investigación Universidad de Sevilla
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Estudios sobre lingüística pragmática y análisis del discurso en español. Homenaje a Catalina Fuentes
No full textEl análisis de la lengua como instrumento de comunicación exige tomar en consideración todos aquellos factores contextuales, situacionales y sociales que determinan su uso; solo así podremos llegar a desentrañar el funcionamiento de un objeto de estudio tan complejo y poliédrico como nuestro sistema lingüístico. Las estrategias de gestión de la imagen social, el efecto (des)cortés generado, los mecanismos de persuasión del receptor, las estructuras y elementos que marcan las relaciones interactivas y las construcciones y marcadores que conforman la armazón de nuestros discursos son temas esenciales de la lingüística actual, en los que sobresalen las aportaciones de Catalina Fuentes. Las contribuciones contenidas en este volumen abordan dichas líneas de investigación y constituyen un homenaje a su legado científico
Fábula del sacrificio de Ifigenia de Luis Verdejo Ladrón de Guevara
No full textLa Fábula del sacrificio de Ifigenia de Luis Verdejo Ladrón de Guevara es un epilio de finales del siglo XVII, que narra el episodio previo a la guerra de Troya en el que Agamenón sacrifica a su primogénita en las playas de Áulide. Se trata de un mito que hunde sus raíces en los estratos más profundos de las religiones de la cuenca del Mediterráneo y que muestra la persistencia de lo salvaje en la sociedad a través del sacrificio humano, la violencia y la guerra. El poema de Verdejo, escrito en un marcado estilo gongorino y del que conservamos dos redacciones distintas, constituye uno de los textos más importantes de la tradición hispánica de este mito. En esta recreación, que se aleja del modelo de Eurípides, Verdejo entreteje motivos tradicionales, como el del oráculo, con elementos nuevos, como las críticas a la religión pagana o los celos de la diosa Ártemis por la belleza de la joven princesa griega. Esta edición, que incluye un aparato crítico y unas notas aclaratorias, rescata, así, la obra de un escritor que, a pesar de su interés poético, ha caído en el olvido, en gran medida, por los juicios de valor con los que se ha tratado este período literario
Dynamics of non-local lattice systems in l1
No full textIn this paper, the well-posedness and asymptotic behavior of a non-local lattice system are analyzed in the space ℓ1. In fact, the analysis is carried out in the subspace ℓ+1 formed by the nonnegative elements, remaining open the case of the whole space. The same problem has been analyzed recently in the space ℓ2 (see Y. Li et al., Communications on Pure and Applied Analysis, 23 (2024), 935-960). However, the latter does not allow us to consider non-local terms which are natural in the modeling of reaction–diffusion problems introduced by M. Chipot in the wide literature published on this problem. With the current analysis, it is possible to investigate these interesting situations
A uniform betweenness property in metric spaces and its role in the quantitative analysis of the “Lion-man” game
No full textWe analyze, based on an interplay between ideas and techniques from logic and geometric analysis, a pursuit-evasion game. More precisely, we focus on a uniform betweenness property and use it in the study of a discrete lion and man game with an
ε
-capture criterion. In particular, we prove that in uniformly convex bounded domains the lion always wins and, using ideas stemming from proof mining, we extract a uniform rate of convergence for the successive distances between the lion and the man. As a byproduct of our analysis, we study the relation among different convexity properties in the setting of geodesic spaces
La sfida della digitalizzazione e dell’efficienza procedurale nell’Unione europea. Progressi in materia di cooperazione giudiziaria e la situazione del sistema processuale spagnolo
No full textL’Unione europea attua importanti azioni in materia di digitalizzazione
e modernizzazione della cooperazione giudiziaria in materia civile, comerciali
e penale e dei sistemi giudiziari degli Stati. Nella costruzione dell’architettura
digitale nello spazio di libertà, sicurezza e giustizia, troviamo atti legislativi
importanti, come come il regolamento (UE) 2023/2844, del 13 dicembre 2023,
sulla digitalizzazione della cooperazione giudiziaria e dell’accesso alla giustizia
in materia civile, commerciale e penale a livello transfrontaliero. Lo
svolgimento di atti processuali in forma telematica e l’attuazione di meccanismi
quali la videoconferenza o tecnologie simili costituisce un modello
pertinente da prendere in considerazione. Il regolamento risolve problematiche
analoghe a quelle che intende risolvere il Real Decreto-Ley 6/2023
spagnolo, rispondendo almeno in parte a un contesto simile. La regolamentazione
spagnola relativa alla digitalizzazione dell’amministrazione della giustizia,
non può essere al di fuori del quadro europeo e ancor meno di tale
regolamento, come di sistemi già creati come e-CODEX. Possiamo affermare
che aviamo una moderna legislazione europea in materia di digitalizzazione
giudiziaria, che sarà un importante riferimento per l’applicazione pratica
della legislazione spagnola, così come accadrà in altri Stati membri con
problematiche simili, che dovranno prendere in considerazione i meccanismi
istituiti dall’UE e i suoi standard per la protezione delle garanzie procedurali
nelle loro politiche sulla digitalizzazione della giustizia.The European Union is carrying out important actions in the field of
digitization and modernization of judicial cooperation in civil, commercial and
criminal matters and of the judicial systems of the States. In the construction of
digital architecture in the Area of Freedom, Security and Justice, we find
important legislative acts, such as the Regulation (EU) 2023/2844, of 13
December 2023, on the digitalisation of judicial cooperation and access to
justice in cross-border civil, commercial and criminal matters. The performance
of procedural acts telematically and the implementation of mechanisms
such as videoconferencing or similar technology constitutes a relevant model to
be taken into account. The Regulation solves problems analogous aims to solve
by the Spanish Real Decreto-Ley 6/2023, responding at least partially to a
similar context. Spanish legislation on the digitisation of the administration of
justice cannot be out of step with the European framework and even less with
the Regulation on digitisation of judicial cooperation and access to justice in
cross-border cases, as well as with systems already in place such as e-CODEX,
the cornerstone of the digitisation of judicial cooperation. We can affirm that
we will have modern European legislation on judicial digitalisation, which will
be an important reference for the practical application of Spanish legislation, as
will happen in other Member States with similar problems, which will have to
consider the mechanisms established by the EU and its standards for the
protection of procedural guarantees in their policies on the digitalisation of
justice
Longitudinal fibre/matrix debonds in CFRP ultra-thin plies: T-T cyclic testing and numerical prediction
No full textThe edge effect phenomenon in cross-ply laminates made of ultra-thin (UT) 90º plies produces a relevant stress component through the laminate thickness that could lead to the generation of longitudinal debonds (parallel to the loading direction) in the 90° ply block. In this study, specimens from a carbon-epoxy laminate made of conventional 0º and UT 90º ply blocks are inspected after the curing process in order to find longitudinal debonds. The debonds growth is also monitored during a later T-T cyclic testing campaign. The experimental results are compared with the predictions obtained from a BEM model showing a good agreement. Finally, the use of an inverse procedure combining both experimental and numerical analyses leads to the estimation of GIc of the fibre/matrix interface.Universidad de Sevilla VIPPIT-2018-II.2Junta de Andalucía P18-FR-3360Ministerio de UniversidadesMinisterio de Ciencia, Innovación y Universidades PID2021-126279OB-I00Premio Trimestral Publicación Científica Destacada de la US. Escuela Técnica Superior de Ingenierí
Performance of a felt based living wall with greywater irrigation using different indoor ornamental species
No full textVertical greening systems are becoming popular nature-based solutions for including vegetation in the built environment. However, one of the main concerns regards to their water requirements. The use of greywater for their irrigation can be a solution. While several studies have proven that using living walls as a biofilter can improve the quality of the greywater applied for their irrigation, the effects on the vegetation of continuous irrigation with greywater are still unknown. The main objective of this work is the assessment of the vegetation performance using different plant species in indoor living walls exclusively irrigated with greywater. For that, three species (Philodendron hederaceum, Spathiphyllum wallisii and Nephrolepis exaltata) planted on felt-based living wall modules were tested for 30 weeks. Information regarding the main water quality parameters (pH, electrical conductivity (EC), concentration of major cation and anions, chemical oxygen demand (COD) and biological oxygen demand for an incubation period of 5 days (BOD5) were obtained and the development of the vegetation was monitored. The three species adapted well to the continuous irrigation with greywater, though S. wallisii showed a slight decrease in green cover at the end of the study. As the greywater was recirculated, EC increased with time, but no clear effects on growth and appearance were observed in the plants. This suggests the need of periodically replacing the greywater used for irrigation or including irrigation events with freshwater.Premio Trimestral Publicación Científica Destacada de la US. Escuela Técnica Superior de Ingeniería Agronómic
A cellular automata model of a laser reproducing laser passive and active Q-Switching
No full textThe Q-switching (QS) phenomenon in lasers refers to the production of high intensity pulses by means of a saturable absorber (passive method) or by modifying the reflectivity or losses of the intracavity optics or mirrors (active method). Theoretically, the QS is studied through the laser rate equations which are useful to predict, at least qualitatively and roughly, the fundamental aspects of laser dynamics. However, specific details such as the spatial distribution of the intensity of the laser emission escape the simplicity of the rate equations. In this work we present a two dimensional cellular automata model (CA) to study the QS phenomenology for both the passive and the active method. To simulate the passive method we consider a spatial distribution of cells whose physical properties emulate those of the saturable adsorbers. And for the active method we introduce a periodic modulation of the lifetime of the photons inside the cavity. We have done numerous numerical simulations that show that despite the simplicity of the evolution rules, the AC model is capable of obtaining the main dynamics of operation of the laser by modifying the system parameters such as the pumping probability and the properties of the absorber.Ministerio de Ciencia. Innovación y Universidades SANEVEC TED2021-130825B-I0
Effect of thickness-to-radius ratio on the impact response of fabric-reinforced composite shells
No full textThis study analyses the effect of thickness-to-radius (t/R) ratio on the dynamic response of fabric-reinforced composite shells subjected to low-velocity impact loads using 3D finite element models validated by experimental results. Focus is given to the t/R ratio's influence on energy dissipation and damage modes. For thick-walled shells (t/R > 0.05) the peak force and contact time increases as the curvature decreses (i.e., with a larger radius), while the maximum displacement decreases. On the other hand, thin-walled shells (t/R < 0.05) exhibit lower peak forces, larger displacements, and longer contact times as the curvature decreases. This transition indicates the existence of a critical point around the radius of 50 mm (t/R = 0.05). The main mechanism for energy dissipation in thick-walled shells is intralaminar damage, and its contribution decreases with increasing radius, whereas for thin-walled shells, friction and delamination determine the absorption of impact energy. In terms of damage propagation patterns, thick-walled shells show localized intra- and interlaminar damage, while thin-walled shells evidence a cross-like intralaminar pattern with more extensive delamination
The hidden cost of comfort: regulatory blindness to humidity and a new energy poverty index for tropical housing
No full textPrevailing thermal comfort and energy efficiency standards such as ASHRAE 55 and NEC HS-EE are fundamentally misaligned with the climatic realities of tropical regions, where relative humidity—rather than temperature—constitutes the dominant factor influencing occupant comfort. Both frameworks rely primarily on-air temperature and running mean calculations, neglecting the substantial influence of relative humidity. This simplification is particularly problematic in tropical climates, where high humidity levels frequently amplify the perception of heat, impair natural cooling mechanisms, and significantly increase the need for mechanical systems.
This study evaluates the performance of low-income housing in coastal Ecuador using dynamic simulations under current and future climate scenarios, comparing energy demand outcomes for envelope designs compliant with NEC and ASHRAE standards. The results show that these standards, while effective in temperate climates, lead to internal overheating and substantially increased cooling loads when applied to tropical settings. Moreover, the inclusion of relative humidity in comfort analysis reveals that actual thermal conditions often surpass acceptable thresholds—even when operative temperatures fall within the normative comfort bands. To better reflect the lived thermal experience, a modified energy poverty indicator is proposed, integrating relative humidity as a key variable. Findings show that achieving real comfort conditions under high humidity may require up to ten times more energy than estimated by temperature-only models, pushing household costs beyond affordability
limits. These results highlight a critical mismatch between prevailing standards and tropical climatic conditions, underscoring the need for more context-sensitive frameworks that explicitly address humidity-driven discomfort and its socioeconomic consequence